For a short while he was Minardi's reserve driver after making a surprise return to Formula 1 in 2001. Marques is now retired after spells in CART and Brazillian stock cars (The latter was overshadowed by a failed drugs test which more or less ended his career). He now runs a custom design business, where he builds and modifies bikes and cars, but also specialises in houses and yachts! Tarso started in the sport at a very young age, becoming a winner in Sud-Am Formula 3 at just seventeen and then in International Formula 3000 before he was twenty. As well as the aforementioned series, Tarso also raced in the FIA GT series briefly. In 2018, Marques made a surprise return to racing in stock cars.